CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3
abhaygarg12493
abhaygarg12493

Reputation: 1605

How to handle multiple layout in Rails

we have lots of panel in out Application like admin , teacher principal , student , parent etc .

Each panel have its own layout So upon login we handle this using WelcomeController 

class WelcomeController < ApplicationController
  def index
    respond_to do |format|
      format.html do
        return render :home if current_user.nil?
        return render :admin if current_user.super?
        return redirect_to("/student/lesson") if current_user.student?
        return redirect_to("/teacher/lesson") if current_user.teacher?
        return render "layouts/principal" if current_user.principal?
        return render "layouts/coordinator" if current_user.coordinator?
        return render "layouts/viceprincipal" if current_user.viceprincipal?
        return render "layouts/parent" if current_user.parent?
      end
    end
  end
end

So right now for getting data from controller we redirect to his route Like for Student 

return redirect_to("/student/lesson") if current_user.student?

but we wants that on URL / we get data from controller . So my problem is how to get data ? So we can use in views

I am new to Rails , if I am using something wrong Please let me know . Will I get data from Model ?

In routes we use 

get '/student/lesson', to: 'student_lesson_plan#index', as: 'student_lesson'

And from index Action we have variables which we use . So I want instead of

return redirect_to("/student/lesson") if current_user.student? something like this 

return render "layouts/student" if current_user.student?

And I can use those variables which I initialize in student_lesson_plan#index or from another place

Upvotes: 2

Views: 924

Answers (1)

coding addicted
coding addicted

Reputation: 3430

In my application I would set something like this to get different layout depending on conditions: 

class ApplicationController < ActionController::Base
  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.
  protect_from_forgery with: :exception

  layout :layout_by_user_types # works like a before action 

  def layout_by_user_types
    if current_user.student?
      "students/application"
    elsif current_user.other_condition?
      "other_name_space/application" 
    else
      "application"
    end
  end

end

In my views folder I would separate the different layouts so I can call different css/js if needed ... 

-views
  -layouts
    -students
      -_my_partials.html.erb
      -application.html.erb
    -other_users
      -_my_partials.html.erb
      -application.html.erb
....

The basic understanding of how we get info from models to views thanks to the controllers:

In a controller

class StudentController < ApplicationController

  def_index
   @my_var_i_want_in_my_view = Student.my_query_to_database
   @my_var_i_want_in_my_view_too = Student.my_super_action_that_will_give_some_data_and_that_is_a_method_in_my_model
  end

end

Then in the view you can grab and use @my_var_i_want_in_my_view

Upvotes: 1

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